Joint power distribution algorithm for multi-user downlink of JT MIMO system

Author

Gong Yi ; Xie Xian-zhong

Author_Institution

Chongqing Univ. of Posts & Telecommun., Chongqing

fYear

2007

fDate

11-13 July 2007

Firstpage

163

Lastpage

167

Abstract

For the downlink of MIMO TDD/CDMA mobile radio systems Joint Transmission(JT) which has low receiver complexity is recently proposed. First investigations concerned linear transmitter algorithms and nonlinear transmitter algorithms based on the principle of Tomli-son-Harashima Precoding(THP). The nonlinear transmitter algorithms studied by M. Meurer have preferable energy efficient but restricted by coding complexity. In this paper we present a power distribution algorithm in multi-user downlink of linear JT in MIMO system (JT MIMO). First, a model of JT MIMO downlink and interference is introduced, then, we present a joint power distribution algorithm for JT MIMO downlink. By distributing the transmission power of users rationally, under achieving the SINR, minimizes the total transmitted power.

Keywords

MIMO systems; code division multiple access; electromagnetic interference; mobile radio; multi-access systems; precoding; radio links; radio transmitters; JT MIMO TDD/CDMA mobile radio system; Tomli-son-Harashima precoding; joint power distribution algorithm; joint transmission; multiuser downlink system; nonlinear transmitter algorithm; radio interference; MIMO; Mobile communication; Multiaccess communication; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems, 2007. ICCCAS 2007. International Conference on

Conference_Location

Kokura

Print_ISBN

978-1-4244-1473-4

Type

conf

DOI

10.1109/ICCCAS.2007.6250073

Filename

6250073